MAGNETIC TONER
    51.
    发明申请
    MAGNETIC TONER 有权
    磁性墨粉

    公开(公告)号:US20080286676A1

    公开(公告)日:2008-11-20

    申请号:US12179090

    申请日:2008-07-24

    Abstract: A magnetic toner having magnetic toner particles each containing at least a binder resin and a magnetic iron oxide particle, in which: when a solution is prepared by dissolving the magnetic iron oxide particles in an acidic aqueous solution and an Fe element amount in a solution in which all the magnetic iron oxide particles are dissolved is defined as a total Fe element amount, a ratio X of the amount of Fe(2+) in a solution in which the magnetic iron oxide particles are dissolved to a state where 10 mass % of the total Fe element amount is present in the solution (solution having an Fe element-dissolving ratio of 10 mass %) to an Fe element amount in the solution having a specific Fe element-dissolving ratio; and the dielectric loss tangents of the magnetic toner measured at a temperature of 40° C. satisfy specific conditions.

    Abstract translation: 一种具有磁性调色剂颗粒的磁性调色剂,每个磁性调色剂颗粒至少含有粘合剂树脂和磁性氧化铁颗粒,其中:当将磁性氧化铁颗粒溶解在酸性水溶液中并将Fe元素量溶解在溶液中时, 将所有的磁性氧化铁颗粒溶解的全部Fe元素量定义为磁性氧化铁颗粒溶解的溶液中的Fe(2+)量与10质量% 在具有特定的Fe元素溶解比的溶液中,Fe溶液中Fe元素量的Fe元素总量存在于Fe元素溶解率为10质量%的溶液中, 并且在40℃的温度下测量的磁性调色剂的介电损耗角正切满足特定条件。

    Toner for Electrostatic Latent Image Development and Method of Magnetic Monocomponent Development
    53.
    发明申请
    Toner for Electrostatic Latent Image Development and Method of Magnetic Monocomponent Development 有权
    静电潜像显影用调色剂及磁性单组分显影方法

    公开(公告)号:US20080213680A1

    公开(公告)日:2008-09-04

    申请号:US10586562

    申请日:2005-02-25

    Applicant: Takashi Nagai

    Inventor: Takashi Nagai

    CPC classification number: G03G13/08 G03G9/0827 G03G9/09708 G03G2215/0609

    Abstract: The present invention provides a toner for electrostatic latent image development and a method of magnetic monocomponent development using the toner which can prevent the toner adhesion to a photoconductor for a long time period and can obtain an image having high quality by maintaining functions of the toner for a long time period or by favorably adjusting the conveying property of the toner on a developing sleeve. In a toner for electrostatic latent image development which contains toner particles and inorganic particles and a method of development using the toner, the toner particles exhibit a shape factor SF-1 which satisfies the relationship 115≦SF-1≦150 and a shape factor SF-2 which satisfies the relationship 115≦SF-2≦145 and, at the same time, a quantity of inorganic particles which are in a floating state is set to a value which falls within a range from 10 weight % to 25 weight % with respect to the total quantity of the inorganic particles.

    Abstract translation: 本发明提供了一种用于静电潜像显影的调色剂和使用调色剂的磁性单组分显影方法,其可以防止调色剂长时间粘附到感光体上,并且可以通过保持调色剂的功能来获得具有高质量的图像 或者通过有利地调节显影套筒上的调色剂的输送性能。 在包含调色剂颗粒和无机颗粒的静电潜像显影用调色剂和使用调色剂的显影方法中,调色剂颗粒呈现满足关系115 <= SF-1 <= 150的形状因子SF-1和形状 满足关系115 <= SF-2 <= 145的因子SF-2,并且同时将处于浮动状态的无机颗粒的量设定为在10重量%以下的范围内的值 相对于无机粒子的总量为25重量%。

    One-component magnetic toner for developing an electrostatic charge image, process cartridge, and method for recycling the process cartridge
    55.
    发明授权
    One-component magnetic toner for developing an electrostatic charge image, process cartridge, and method for recycling the process cartridge 有权
    用于显影静电荷图像的单组分磁性调色剂,处理盒和用于再循环处理盒的方法

    公开(公告)号:US07323279B2

    公开(公告)日:2008-01-29

    申请号:US10891060

    申请日:2004-07-15

    Abstract: The present invention provides a one-component magnetic toner for developing an electrostatic charge image, which do not cause an image defect by toner aggregation or fusion even though a device is miniaturized and the processing speed of the device is accelerated, and which allows easy recycling of a toner cartridge. The one-component magnetic toner for developing an electrostatic charge image of the present invention is one comprising: toner particles comprising fine magnetic particles (A) and a binder resin; and fine magnetic particles (B) externally added to the toner particles, in which the maximum permeability (μmA) of the fine magnetic particles (A) contained in the toner particles and the maximum permeability (μmB) of the fine magnetic particles (B) externally added to the toner particles satisfy a relationship represented by the following formula (1) μmB/μmA≦1.8 .  (1)

    Abstract translation: 本发明提供了一种用于显影静电荷图像的单组分磁性调色剂,即使装置小型化并且装置的处理速度加快,也不会通过调色剂聚集或熔化而引起图像缺陷,并且容易回收 的墨粉盒。 用于显影本发明的静电荷图像的单组分磁性调色剂是包括:包含精细磁性颗粒(A)和粘合剂树脂的调色剂颗粒; 和外部添加到调色剂颗粒中的细磁性颗粒(B),其中包含在调色剂颗粒中的细小磁性颗粒(A)的最大磁导率(mum A )和最大磁导率(mum < 外部添加到调色剂颗粒中的细小磁性颗粒(B)的重量比(B B)满足由下式(1)表示的关系<?in-line-formula description =“In-line formula”end = “铅”?>妈妈B / mum <= 1.8。 (1)<?in-line-formula description =“In-line Formulas”end =“tail”?>

    Capsulated toner
    56.
    发明申请
    Capsulated toner 有权
    包装墨粉

    公开(公告)号:US20070259284A1

    公开(公告)日:2007-11-08

    申请号:US11797143

    申请日:2007-05-01

    CPC classification number: G03G9/09392 G03G9/09321 G03G9/09364 G03G9/09371

    Abstract: There is provided a capsulated toner which has low-temperature fixing ability, good storage stability, excellent charge stability, high fixing strength to a sheet paper, and low consumption, and is capable of forming a color image of high-definition, high-gloss, and high-density. The capsulated toner for electrophotography includes a shell layer containing a cycloolefin copolymer resin and a core particle including a synthetic resin different from the cycloolefin copolymer resin, wherein the capsulated toner has a core/shell type structure.

    Abstract translation: 提供了具有低温定影能力,良好的储存稳定性,优异的电荷稳定性,对纸张的高固定强度和低消耗量的封装调色剂,并且能够形成高清晰,高光泽的彩色图像 ,高密度。 用于电子照相的封装调色剂包括含有环烯烃共聚物树脂的壳层和包含不同于环烯烃共聚物树脂的合成树脂的核心颗粒,其中所述封装调色剂具有核/壳型结构。

    MAGNETIC TONER
    57.
    发明申请
    MAGNETIC TONER 审中-公开
    磁性墨粉

    公开(公告)号:US20070202424A1

    公开(公告)日:2007-08-30

    申请号:US11742177

    申请日:2007-04-30

    Abstract: Provided is a magnetic toner comprising magnetic toner particles each comprising at least a binder resin and a magnetic iron oxide, the magnetic toner being excellent in developability and environmental stability, and being capable of reducing a toner consumption. A saturation magnetization σs and a remanent magnetization σr of the magnetic toner in a measured magnetic field of 795.8 kA/m are arranged in the range of 5 to 60 Am2/kg and in the range of 0.1 to 10.0 Am2/kg, respectively, and the binder resin having a polyester component polymerized by using a Ti chelate compound as a catalyst is used.

    Abstract translation: 提供了一种磁性调色剂,其包含每个至少包含粘合剂树脂和磁性氧化铁的磁性调色剂颗粒,所述磁性调色剂的显影性和环境稳定性优异,并且能够降低调色剂消耗。 在795.8kA / m的测量磁场中的磁性调色剂的饱和磁化强度和残余磁化强度排列在5至60Am 2 / kg的范围内,并且在0.1至 使用10.0Am 2 / kg,并且使用具有通过使用Ti螯合化合物作为催化剂聚合的聚酯组分的粘合剂树脂。

    Toner with high strength magnetite
    58.
    发明申请
    Toner with high strength magnetite 有权
    高强度磁铁矿墨粉

    公开(公告)号:US20070196755A1

    公开(公告)日:2007-08-23

    申请号:US11359137

    申请日:2006-02-21

    Abstract: A toner having a high strength magnetite in an amount of from about 10 to about 40 weight percent, wherein the magnetite includes a material selected from the group consisting of FeO, Fe2O3, Fe3O4, gamma iron oxides, cobalt-gamma iron oxides, and mixtures thereof, and further including a developer having a carrier and toner as just described.

    Abstract translation: 具有约10至约40重量%的高强度磁铁矿的调色剂,其中所述磁铁矿包括选自FeO,Fe 2 O 3 O 3, 氧化铁,钴-γ铁氧化物及其混合物,还包括具有如上所述的载体和调色剂的显影剂。

    SINGLE-COMPONENT MAGNETIC TONER AND DEVELOPING UNIT AND IMAGE FORMING APPARATUS USING THE TONER
    60.
    发明申请
    SINGLE-COMPONENT MAGNETIC TONER AND DEVELOPING UNIT AND IMAGE FORMING APPARATUS USING THE TONER 审中-公开
    单组分磁选机和开发单元和图像形成装置使用TONER

    公开(公告)号:US20070122726A1

    公开(公告)日:2007-05-31

    申请号:US11537440

    申请日:2006-09-29

    Abstract: The invention aims to provide magnetic single-component toner of which externally added magnetic powder is not buried into the toner even when the toner has experienced stress due to use and thermal stress, which is superior in stability of electrostatic charge and allow images without lack in parts of the image to be formed stably, and with which occurrence of a filming phenomenon of the photoreceptor drum and dielectric breakdown due to charge leaks to the photoreceptor drum are prevented and stable formation of thin layer of toner on the developing sleeve for a long period can be secured, and to provide a developing unit and image forming apparatus using the toner. The magnetic single-component toner contains in its binder resin at least magnetic powder, and externally added with magnetic powder of basically polyhedral grain shape with apexes and ridges being rounded to be formed into curved surfaces such that portions deemed as straight lines remain on the circumference of the projected figure of the grain, and said magnetic powder externally added is of volume specific resistance of in a range of 102-109 Ωcm.

    Abstract translation: 本发明的目的在于提供一种磁性单组分调色剂,即使当调色剂由于使用和热应力而经历了应力时,外部添加的磁粉也不会被掩埋在调色剂中,静电荷的稳定性优异, 要稳定地形成的图像的部分以及感光鼓的成膜现象和由于电荷泄漏到感光鼓的介质击穿的发生被防止并且在显影套筒上长时间稳定地形成调色剂薄层 并且提供使用该调色剂的显影单元和图像形成装置。 磁性单组分调色剂至少在其粘合剂树脂中含有磁性粉末,并且外部添加了基本上为多面体晶粒形状的磁性粉末,顶点和脊部被圆化以形成弯曲表面,使得被认为是直线的部分保留在圆周上 的颗粒的投影图,并且外部添加的所述磁性粉末的体积电阻率在10±10psi范围内。

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